CVE-2022-49732

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49732
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49732.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-49732
Downstream
Related
Published
2025-02-26T14:57:24Z
Modified
2025-10-21T11:01:23.767055Z
Summary
sock: redo the psock vs ULP protection check
Details

In the Linux kernel, the following vulnerability has been resolved:

sock: redo the psock vs ULP protection check

Commit 8a59f9d1e3d4 ("sock: Introduce sk->skprot->psockupdateskprot()") has moved the inetcskhasulp(sk) check from skpsockinit() to the new tcpbpfupdateproto() function. I'm guessing that this was done to allow creating psocks for non-inet sockets.

Unfortunately the destruction path for psock includes the ULP unwind, so we need to fail the skpsockinit() itself. Otherwise if ULP is already present we'll notice that later, and call tcpupdateulp() with the sk_proto of the ULP itself, which will most likely result in the ULP looping its callbacks.

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
8a59f9d1e3d4340659fdfee8879dc09a6f2546e1
Fixed
72fa0f65b56605b8a9ae9fba2082f2123f7fe017
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
8a59f9d1e3d4340659fdfee8879dc09a6f2546e1
Fixed
922309e50befb0cfa5cb65e4989b7706d6578846
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
8a59f9d1e3d4340659fdfee8879dc09a6f2546e1
Fixed
e34a07c0ae3906f97eb18df50902e2a01c1015b6

Affected versions

v5.*

v5.12
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8
v5.13
v5.13-rc1
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
v5.13-rc7
v5.14
v5.14-rc1
v5.14-rc2
v5.14-rc3
v5.14-rc4
v5.14-rc5
v5.14-rc6
v5.14-rc7
v5.15
v5.15-rc1
v5.15-rc2
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
v5.15.1
v5.15.10
v5.15.11
v5.15.12
v5.15.13
v5.15.14
v5.15.15
v5.15.16
v5.15.17
v5.15.18
v5.15.19
v5.15.2
v5.15.20
v5.15.21
v5.15.22
v5.15.23
v5.15.24
v5.15.25
v5.15.26
v5.15.27
v5.15.28
v5.15.29
v5.15.3
v5.15.30
v5.15.31
v5.15.32
v5.15.33
v5.15.34
v5.15.35
v5.15.36
v5.15.37
v5.15.38
v5.15.39
v5.15.4
v5.15.40
v5.15.41
v5.15.42
v5.15.43
v5.15.44
v5.15.45
v5.15.46
v5.15.47
v5.15.48
v5.15.49
v5.15.5
v5.15.50
v5.15.6
v5.15.7
v5.15.8
v5.15.9
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.18.1
v5.18.2
v5.18.3
v5.18.4
v5.18.5
v5.18.6
v5.18.7
v5.19-rc1
v5.19-rc2

Database specific

vanir_signatures

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        "id": "CVE-2022-49732-06b7d714",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "file": "net/tls/tls_main.c"
        },
        "digest": {
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        "id": "CVE-2022-49732-15e57299",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "function": "tls_update",
            "file": "net/tls/tls_main.c"
        },
        "digest": {
            "length": 307.0,
            "function_hash": "183981327339320958223317651212509257813"
        },
        "signature_type": "Function"
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@72fa0f65b56605b8a9ae9fba2082f2123f7fe017",
        "id": "CVE-2022-49732-31d5c7dd",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
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        "id": "CVE-2022-49732-40b1f9ee",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "function": "sk_psock_init",
            "file": "net/core/skmsg.c"
        },
        "digest": {
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            "function_hash": "210131477117632649025409644050967847307"
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        "signature_type": "Function"
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@922309e50befb0cfa5cb65e4989b7706d6578846",
        "id": "CVE-2022-49732-45926001",
        "deprecated": false,
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        "id": "CVE-2022-49732-54e77dc7",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "file": "net/ipv4/tcp_bpf.c"
        },
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        "id": "CVE-2022-49732-5b577591",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "function": "tcp_bpf_update_proto",
            "file": "net/ipv4/tcp_bpf.c"
        },
        "digest": {
            "length": 906.0,
            "function_hash": "158785150269524310989118206750430503629"
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    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@72fa0f65b56605b8a9ae9fba2082f2123f7fe017",
        "id": "CVE-2022-49732-5da00500",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "file": "include/net/inet_sock.h"
        },
        "digest": {
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        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e34a07c0ae3906f97eb18df50902e2a01c1015b6",
        "id": "CVE-2022-49732-6265c176",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "function": "sk_psock_init",
            "file": "net/core/skmsg.c"
        },
        "digest": {
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    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e34a07c0ae3906f97eb18df50902e2a01c1015b6",
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        "target": {
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        "target": {
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        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "function": "tls_update",
            "file": "net/tls/tls_main.c"
        },
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            "function_hash": "183981327339320958223317651212509257813"
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        "signature_type": "Function"
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    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@72fa0f65b56605b8a9ae9fba2082f2123f7fe017",
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        "deprecated": false,
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        "target": {
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        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@922309e50befb0cfa5cb65e4989b7706d6578846",
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        "target": {
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        "target": {
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            "file": "net/ipv4/tcp_bpf.c"
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        "target": {
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        },
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        "target": {
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    }
]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.13.0
Fixed
5.15.51
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
5.18.8